staging: comedi: pcm3724: tidy up register map defines

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For aesthetics, rename the register map defines so they have namespace
associated with the driver and use the BIT macro to define the bits.

Add the missing defines for the registers and use them to remove the
magic values from the driver.

Add a comment about the extra registers to explain why this driver
doesn't just use the standard 8255 driver instead.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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H Hartley Sweeten 2015-10-01 11:59:28 -07:00 • committed by Greg Kroah-Hartman

parent 629af2407d

commit 5891b5b2aa

1 changed files with 39 additions and 27 deletions

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drivers/staging/comedi/drivers/pcm3724.c

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